Figure 6

Redox metabolites in human and porcine saphenous vein before and after vein graft preparation. Levels of oxidized glutathione (GSSG), reduced glutathione (GSH), GSSG/GSH ratio, glutathione metabolite 5-oxoproline, and the anti-glycating agent carnosine in (a) HSV from CABG patients (n = 13) and (b) the PSV model (n = 8) unprepared (UP) or after preparations (AP in HSV; AP and OP in PSV). Values are expressed as box-and-whisker plots, *p ≤ 0.05.